Contra Costa County, CA Average Home Price (2026)
The average home price in Contra Costa County, California is about $773,000 (the 2026 median across 40 ZIP codes, at ~$490/sq ft) — 12% more expensive than the California median and 167% more expensive than the typical U.S. home.
How Contra Costa County compares
Contra Costa County is relatively expensive for housing nationally: its typical home costs $773,000 against $688,000 for California and $289,000 for the U.S. Within the county, ZIP-level values run from about $507,000 to $3,107,000.
| Area | Typical value | $ / sq ft |
|---|---|---|
| Contra Costa County | $773,000 | $490 |
| California | $688,000 | $451 |
| United States | $289,000 | $193 |
Cities in Contra Costa County
Cities with their own home-value page, largest first:
Contra Costa County home prices by ZIP code
The 15 most valuable ZIP codes in Contra Costa County (of 40 with data):
| ZIP code | Typical value | $ / sq ft | vs county |
|---|---|---|---|
| 94528 Diablo | $3,107,000 | $1033 | +302% |
| 94507 Alamo | $2,532,000 | $874 | +228% |
| 94506 Danville | $1,983,000 | $690 | +157% |
| 94563 Orinda | $1,944,000 | $738 | +151% |
| 94549 Lafayette | $1,911,000 | $808 | +147% |
| 94526 Danville | $1,711,000 | $830 | +121% |
| 94582 San Ramon | $1,665,000 | $677 | +115% |
| 94708 Berkeley | $1,627,000 | $685 | +110% |
| 94556 Moraga | $1,604,000 | $614 | +108% |
| 94598 Walnut Creek | $1,370,000 | $595 | +77% |
| 94583 San Ramon | $1,332,000 | $691 | +72% |
| 94530 El Cerrito | $1,120,000 | $635 | +45% |
| 94596 Walnut Creek | $1,064,000 | $609 | +38% |
| 94517 Clayton | $1,027,000 | $490 | +33% |
| 94597 Walnut Creek | $972,000 | $552 | +26% |
Home value appreciation in Contra Costa County
Home prices in Contra Costa County have risen about 71% over the last 10 years (≈5.5% a year) and +41.9% over 20 years, according to the FHFA house price index through 2025. The most recent year came in at 0.0% — roughly flat. A home worth $773,000 today was worth roughly $452,047 ten years ago.
See where that trend takes a specific home with the home appreciation calculator — statewide, California is +80.3% over the same 10 years. Past appreciation is a track record, not a forecast; local prices can fall.
Calculators for Contra Costa County
Run the numbers for Contra Costa County with the local rates already filled in — change any input to test your own situation.
Salary needed to buy a home in Contra Costa County
To buy the typical $773,000 home in Contra Costa County with 20% down, you need a household income of roughly $210,000 a year (about $4,910 a month for the mortgage, taxes, and insurance). With 10% down the bar rises to about $250,000, because the loan is bigger and mortgage insurance kicks in.
| Down payment | Cash down | Monthly payment | Income needed |
|---|---|---|---|
| 5% (+PMI) | $38,700 | $6,100/mo | $261,000/yr |
| 10% (+PMI) | $77,300 | $5,830/mo | $250,000/yr |
| 20% | $154,600 | $4,910/mo | $210,000/yr |
Assumes a 30-year fixed mortgage at 6.5%, property tax at 1.1% and insurance at 0.45% of value per year, PMI of 0.75% on loans with less than 20% down, and the standard 28% housing-to-income rule. Your rate, taxes, and HOA will move these — run your own numbers in the mortgage calculator.
What your budget buys in Contra Costa County
At about $490 per square foot, here is roughly how much home different budgets get you in Contra Costa County:
| Budget | Approx. size | What that looks like locally |
|---|---|---|
| $400k | 820 sq ft | below the local median — condos, smaller or older homes |
| $500k | 1020 sq ft | below the local median — condos, smaller or older homes |
| $600k | 1220 sq ft | below the local median — condos, smaller or older homes |
| $750k | 1530 sq ft | around the typical home here |
| $1.00M | 2040 sq ft | around the typical home here |
Wondering where that budget goes further? The relocation calculator ranks hundreds of U.S. cities by what the same money buys — it opens filtered to California.
Estimate a specific home in Contra Costa County
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Contra Costa County home prices: frequently asked
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Browse all California cities and counties, or look up price per square foot by ZIP code nationwide.
Directional estimates from public market data (Realtor.com & Zillow research; FHFA house price index; Census ZIP-to-county relationships), not appraisals.